Find in Library

In this paper reports the results of studies of the surveillance of partial discharge (PD) in the stator the turbine generator (TG) TVF-60-2 when its work on the network. Shown that, for a correct interpretation of the measurement results PD in TG, it is necessary to know winding diagram and the order of their location in the stator slots; circuit crossing them in the end-winding and the stress distribution at the bars in the slot and end-winding part of the TG. Consequently, series-connected stator bars potentially different relative to the ground, the conditions of occurrence of PD in each bar in the slot and end-winding part are substantially different and the phase of occurrence of PD becomes ambiguous parameter.